rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10060/1:b..l P31388/1:b..l
(detected by 0, t=10502 jiffies, g=255905, q=49 ncpus=2)
task:kworker/u4:5 state:R running task stack:25808 pid:31388 ppid: 2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6494
preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6806
irqentry_exit+0x31/0x80 kernel/entry/common.c:428
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x1ef/0x570 kernel/locking/lockdep.c:5634
Code: cf a3 7e 83 f8 01 0f 85 e8 02 00 00 9c 58 f6 c4 02 0f 85 fb 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90004767b98 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920008ecf75 RCX: f9ce8a928c5cff00
RDX: 1ffff1100aba9d4e RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff908dc947
R10: fffffbfff211b928 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: ffffffff8bf86900 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:280 [inline]
rcu_read_lock include/linux/rcupdate.h:706 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x12d/0xfa0 net/batman-adv/network-coding.c:719
process_one_work+0x991/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
task:udevd state:R running task stack:26032 pid:10060 ppid: 2971 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6494
preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6663
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
vprintk_emit+0x1ea/0x5f0 kernel/printk/printk.c:2272
vprintk+0x80/0x90 kernel/printk/printk_safe.c:50
_printk+0xba/0xed kernel/printk/printk.c:2292
blk_print_req_error block/blk-mq.c:711 [inline]
blk_update_request+0x1261/0x1300 block/blk-mq.c:809
blk_mq_end_request block/blk-mq.c:951 [inline]
blk_mq_try_issue_directly+0xb4/0xf0 block/blk-mq.c:2522
blk_mq_submit_bio+0x1306/0x1d30 block/blk-mq.c:2843
__submit_bio+0x2b7/0x340 block/blk-core.c:595
__submit_bio_noacct_mq block/blk-core.c:672 [inline]
submit_bio_noacct_nocheck block/blk-core.c:689 [inline]
submit_bio_noacct_nocheck+0x6c9/0x8a0 block/blk-core.c:678
submit_bio_noacct+0xa87/0x1d10 block/blk-core.c:796
submit_bio block/blk-core.c:848 [inline]
submit_bio+0xd7/0x300 block/blk-core.c:820
submit_bh_wbc+0x4cc/0x650 fs/buffer.c:2719
submit_bh fs/buffer.c:2725 [inline]
block_read_full_folio+0x63e/0x980 fs/buffer.c:2340
filemap_read_folio+0x3c/0x1d0 mm/filemap.c:2394
do_read_cache_folio+0x1df/0x510 mm/filemap.c:3519
read_mapping_folio include/linux/pagemap.h:762 [inline]
read_part_sector+0xf6/0x440 block/partitions/core.c:714
adfspart_check_ICS+0x9a/0x890 block/partitions/acorn.c:360
check_partition block/partitions/core.c:146 [inline]
blk_add_partitions block/partitions/core.c:599 [inline]
bdev_disk_changed block/partitions/core.c:685 [inline]
bdev_disk_changed+0x629/0xf60 block/partitions/core.c:652
blkdev_get_whole+0x18a/0x2d0 block/bdev.c:684
blkdev_get_by_dev.part.0+0x5ec/0xb90 block/bdev.c:821
blkdev_get_by_dev+0x6b/0x80 block/bdev.c:855
blkdev_open+0x13c/0x2c0 block/fops.c:485
do_dentry_open+0x4a4/0x13a0 fs/open.c:878
do_open fs/namei.c:3557 [inline]
path_openat+0x1c92/0x28f0 fs/namei.c:3691
do_filp_open+0x1b6/0x400 fs/namei.c:3718
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd0fc925697
RSP: 002b:00007ffd6ea6dcf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005590fce3a6c0 RCX: 00007fd0fc925697
RDX: 00000000000a0800 RSI: 00005590fce1cf90 RDI: 00000000ffffff9c
RBP: 00005590fce1cf90 R08: 00000000ffffffff R09: 00007ffd6ea93080
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 00005590fce32b20 R14: 0000000000000001 R15: 00005590fce012c0
rcu: rcu_preempt kthread starved for 10500 jiffies! g255905 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28656 pid: 16 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6494
schedule+0xda/0x1b0 kernel/sched/core.c:6570
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1657
rcu_gp_kthread+0x236/0x360 kernel/rcu/tree.c:1854
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 0
CPU: 0 PID: 10453 Comm: syz-executor.1 Not tainted 6.0.0-rc4-syzkaller-00059-gd2ec799d1c1b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x46/0x14f lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x206/0x250 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:514
print_other_cpu_stall kernel/rcu/tree_stall.h:619 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:762 [inline]
rcu_pending kernel/rcu/tree.c:3660 [inline]
rcu_sched_clock_irq+0x2404/0x2530 kernel/rcu/tree.c:2342
update_process_times+0x11a/0x1a0 kernel/time/timer.c:1839
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1480
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe40 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:write_comp_data+0x0/0x90 kernel/kcov.c:229
Code: 3a 87 7e 81 e2 00 01 ff 00 75 10 65 48 8b 04 25 80 6f 02 00 48 8b 80 b0 15 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <65> 8b 05 99 3a 87 7e 49 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49
RSP: 0018:ffffc9000520f5d8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff8880b9b3f7a0 RCX: ffffffff817084d7
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1017367ef5
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001
csd_lock_wait kernel/smp.c:414 [inline]
smp_call_function_many_cond+0x5e7/0x1430 kernel/smp.c:988
on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1154
__purge_vmap_area_lazy+0x1f6/0x1c50 mm/vmalloc.c:1732
_vm_unmap_aliases.part.0+0x425/0x560 mm/vmalloc.c:2156
_vm_unmap_aliases mm/vmalloc.c:2130 [inline]
vm_unmap_aliases+0x45/0x50 mm/vmalloc.c:2179
change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1732
change_page_attr_clear arch/x86/mm/pat/set_memory.c:1789 [inline]
set_memory_ro+0x78/0xa0 arch/x86/mm/pat/set_memory.c:1980
bpf_prog_lock_ro include/linux/filter.h:849 [inline]
bpf_prog_select_runtime+0x504/0x640 kernel/bpf/core.c:2195
bpf_prog_load+0x13ff/0x2220 kernel/bpf/syscall.c:2599
__sys_bpf+0x1e7e/0x6130 kernel/bpf/syscall.c:4953
__do_sys_bpf kernel/bpf/syscall.c:5057 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5055 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:5055
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0eb0489279
================================
WARNING: inconsistent lock state
6.0.0-rc4-syzkaller-00059-gd2ec799d1c1b #0 Not tainted
--------------------------------
inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
syz-executor.1/10453 [HC1[1]:SC0[0]:HE0:SE1] takes:
ffffffff8c0b96d8 (vmap_area_lock){?.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline]
ffffffff8c0b96d8 (vmap_area_lock){?.+.}-{2:2}, at: find_vmap_area+0x1c/0x130 mm/vmalloc.c:1836
{HARDIRQ-ON-W} state was registered at:
lock_acquire kernel/locking/lockdep.c:5666 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
alloc_vmap_area+0xa0b/0x1d50 mm/vmalloc.c:1617
__get_vm_area_node+0x142/0x3f0 mm/vmalloc.c:2484
__vmalloc_node_range+0x250/0x13a0 mm/vmalloc.c:3156
__vmalloc_node mm/vmalloc.c:3261 [inline]
__vmalloc+0x69/0x80 mm/vmalloc.c:3275
pcpu_mem_zalloc mm/percpu.c:516 [inline]
pcpu_mem_zalloc+0x51/0xa0 mm/percpu.c:508
pcpu_alloc_chunk mm/percpu.c:1454 [inline]
pcpu_create_chunk+0xd7/0x930 mm/percpu-vm.c:338
pcpu_alloc+0x1118/0x14f0 mm/percpu.c:1834
alloc_kmem_cache_cpus.constprop.0+0x29/0x120 mm/slab.c:1729
do_tune_cpucache+0x37/0x2a0 mm/slab.c:3834
enable_cpucache+0x3c/0xa0 mm/slab.c:3928
kmem_cache_init_late+0x33/0x66 mm/slab.c:1276
start_kernel+0x2f5/0x48f init/main.c:1059
secondary_startup_64_no_verify+0xce/0xdb
irq event stamp: 26648
hardirqs last enabled at (26647): [] asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
hardirqs last disabled at (26648): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1106
softirqs last enabled at (6054): [] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last enabled at (6054): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
softirqs last disabled at (5989): [] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last disabled at (5989): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(vmap_area_lock);
lock(vmap_area_lock);
*** DEADLOCK ***
1 lock held by syz-executor.1/10453:
#0: ffffffff8c0b93a8 (vmap_purge_lock){+.+.}-{3:3}, at: _vm_unmap_aliases.part.0+0x414/0x560 mm/vmalloc.c:2154
stack backtrace:
CPU: 0 PID: 10453 Comm: syz-executor.1 Not tainted 6.0.0-rc4-syzkaller-00059-gd2ec799d1c1b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_usage_bug kernel/locking/lockdep.c:3961 [inline]
valid_state kernel/locking/lockdep.c:3973 [inline]
mark_lock_irq kernel/locking/lockdep.c:4176 [inline]
mark_lock.part.0.cold+0x18/0xd8 kernel/locking/lockdep.c:4632
mark_lock kernel/locking/lockdep.c:4596 [inline]
mark_usage kernel/locking/lockdep.c:4524 [inline]
__lock_acquire+0x14a2/0x56d0 kernel/locking/lockdep.c:5007
lock_acquire kernel/locking/lockdep.c:5666 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
find_vmap_area+0x1c/0x130 mm/vmalloc.c:1836
check_heap_object mm/usercopy.c:176 [inline]
__check_object_size mm/usercopy.c:250 [inline]
__check_object_size+0x1f8/0x700 mm/usercopy.c:212
check_object_size include/linux/thread_info.h:199 [inline]
__copy_from_user_inatomic include/linux/uaccess.h:62 [inline]
copy_from_user_nmi arch/x86/lib/usercopy.c:47 [inline]
copy_from_user_nmi+0xcb/0x130 arch/x86/lib/usercopy.c:31
copy_code arch/x86/kernel/dumpstack.c:91 [inline]
show_opcodes+0x59/0xb0 arch/x86/kernel/dumpstack.c:121
show_iret_regs+0xd/0x33 arch/x86/kernel/dumpstack.c:149
__show_regs+0x1e/0x60 arch/x86/kernel/process_64.c:74
show_trace_log_lvl+0x25b/0x2ba arch/x86/kernel/dumpstack.c:292
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x46/0x14f lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x206/0x250 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:514
print_other_cpu_stall kernel/rcu/tree_stall.h:619 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:762 [inline]
rcu_pending kernel/rcu/tree.c:3660 [inline]
rcu_sched_clock_irq+0x2404/0x2530 kernel/rcu/tree.c:2342
update_process_times+0x11a/0x1a0 kernel/time/timer.c:1839
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1480
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe40 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:write_comp_data+0x0/0x90 kernel/kcov.c:229
Code: 3a 87 7e 81 e2 00 01 ff 00 75 10 65 48 8b 04 25 80 6f 02 00 48 8b 80 b0 15 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <65> 8b 05 99 3a 87 7e 49 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49
RSP: 0018:ffffc9000520f5d8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff8880b9b3f7a0 RCX: ffffffff817084d7
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1017367ef5
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001
csd_lock_wait kernel/smp.c:414 [inline]
smp_call_function_many_cond+0x5e7/0x1430 kernel/smp.c:988
on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1154
__purge_vmap_area_lazy+0x1f6/0x1c50 mm/vmalloc.c:1732
_vm_unmap_aliases.part.0+0x425/0x560 mm/vmalloc.c:2156
_vm_unmap_aliases mm/vmalloc.c:2130 [inline]
vm_unmap_aliases+0x45/0x50 mm/vmalloc.c:2179
change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1732
change_page_attr_clear arch/x86/mm/pat/set_memory.c:1789 [inline]
set_memory_ro+0x78/0xa0 arch/x86/mm/pat/set_memory.c:1980
bpf_prog_lock_ro include/linux/filter.h:849 [inline]
bpf_prog_select_runtime+0x504/0x640 kernel/bpf/core.c:2195
bpf_prog_load+0x13ff/0x2220 kernel/bpf/syscall.c:2599
__sys_bpf+0x1e7e/0x6130 kernel/bpf/syscall.c:4953
__do_sys_bpf kernel/bpf/syscall.c:5057 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5055 [inline]
__x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:5055
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0eb0489279
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0eb15f9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f0eb059bf80 RCX: 00007f0eb0489279
RDX: 0000000000000080 RSI: 0000000020000240 RDI: 0000000000000005
RBP: 00007f0eb04e32e9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6508ff5f R14: 00007f0eb15f9300 R15: 0000000000022000
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0eb15f9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f0eb059bf80 RCX: 00007f0eb0489279
RDX: 0000000000000080 RSI: 0000000020000240 RDI: 0000000000000005
RBP: 00007f0eb04e32e9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6508ff5f R14: 00007f0eb15f9300 R15: 0000000000022000